Gas-burner



E. COLE.

GAS BURNER.

APPLICATION FILED SEPT. 1918.

1,368,120. Patented Feb. 8, 1921.

' the opening 13 therein.

UNITED STATES PATENT OFFECE.

GAS-BURNER.

Application filed September 26, 1918.

To all whom it may concern Be it known that I, ELNATHAN Conn, a citizenof the United States, residing at Los Angeles, in the county of LosAngeles and State of California, have invented a new and usefulGas-Burner, of which the tollowing is a specification.

My invention relates to the construction of gas ranges and the like andmore particularly to the burners used therein.

The principal object of the invention is to provide a gas burner whichwill be free from flashbacks and which will distribute the heat ofcombustion evenly over a large surface.

A. further object of the invention is to provide a gas burner by meansof which a very perfect combustion may be maintained.

Referring to the drawings, which are for illustrative purposes only,

Figure 1 is a cross-section through one embodiment of my invention.

Fig. 2 is a section on a plane represented by the line 2-2, Fig. 1 thisplane being viewed in the direction ot the arrows.

Fig. 3 is an enlarged section of the wall of the burner, showing themethod or drilling the holes therein.

In the embodiment of the invention illustrated my invention is shownapplied to a kitchen range or the like, the top of the range 11supporting a utensil 12 placed over Located directly below and centrallyplaced with relation to the opening 13 is a gas burner embodying myinvention which comprises a cone shaped cap 14: which is shown fittedinto an elbow 15. The elbow 15 is threaded on a mixture pipe 16 whichcommunicates with the interior of a mixer 17. A gas supply pipe 18 iscentrally secured in the mixer 17 which has a series of air inlets 19 inaccordance with standard practice in the art.

A conical wire gauze diaphragm 20 is secured by means of a ring 21inside the cap 14, being concentrically placed therein. The cap 1 1 isprovided with a plurality of holes 22, each of these holes being drilledat right angles to the axis of the cone.

The method of operation of the invention is as follows:

Gas being admitted through the pipe 18 is mixed with air in the mixer 17and the mixture is carried through the pipe 16 and Specification ofLetters latent.

Patented Feb. 8, 1921.

Serial No. 255,552.

the elbow 15 into the interior of the cone 20 which serves to furtherbreak up and homogenize the mixture which passes therethrough into thespace between the cone 20 and the cap 14. This mixture passes outthrough the holes 22, being uniformly dis tributed to these differentholes due to the peculiar form of the cap is and the cone 20. Thedirection 01. the gas as it leaves the holes 22 is practicallyhorizontal. The'gases are ignited just outside the burner and theirnatural tendency to rise causes them to take the general directionindicated by the lines 30.

It will be noted that the opening 13 and the cap 1 1 and the cone 20 areall symmetrical around a single axis and it will be further noted thatthe path of the gases to the openings 22 is very uniform. T hat is tosay, the gas supplying the lower openings 22 travels farther radiallyand not so far axially as the gas supplying the upper holes 22. It willbe further noted that the gas passing to the upper holes 22, althoughtravcling in a somewhat longer path, is assisted in its passage overthis path by the natural buoyancy thereof, also the opening in thebottom of the cap is nearly as large as the inside diameter of the capthereby permit ting a full, free flow of combustible mixture to the cap.As a result the flame produced by the burner is very uniform.

As a result of the mixing cone 20 a very even mixture is produced andthis mixing cone very efi ectually prevents the flame from flashing backthrough the elbow 15 and thus through the pipe 16 into the mixer 17. Inother words, the flame cannot blow back into the mixer.

, I claim as my invention In combination, a combustible mixture supplypipe, a conical cap on the upper end of said supply pipe ofapproximately the same diameter of said pipe, said conical cap having aseries of horizontally extending outlet perforations therein, and aconical screen in said cap equally spaced apart from the walls of saidcap arranged to receive an unobstructed flow of combustible mixture fromsaid supply pipe.

In testimony whereof, I have hereunto set my hand at Los Angeles,California, this 17th day of September. 1918.

ELNATHAN COLE.

